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Articles 26851 - 26880 of 33628
Full-Text Articles in Entire DC Network
Human Resources For Energy Systems: Alternative Strategies Of Allocation, Curtis H. Adams, Burns E. Hegler
Human Resources For Energy Systems: Alternative Strategies Of Allocation, Curtis H. Adams, Burns E. Hegler
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
The choice of strategies in establishing manpower policy for energy is critical for the attairment of energy goals. Three alternative strategies are considered with the tradeoffs of each evaluated.
The Missouri Miner, October 07, 1976
The Missouri Miner, October 07, 1976
The Missouri Miner Newspaper
No abstract provided.
Missouri S&T Magazine, October 1976, Miner Alumni Association
Missouri S&T Magazine, October 1976, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
Inelastic Cross Sections For Molecules Interacting Through Dipole And/Or Quadrupole Potentials, Louis Biolsi Jr.
Inelastic Cross Sections For Molecules Interacting Through Dipole And/Or Quadrupole Potentials, Louis Biolsi Jr.
Chemistry Faculty Research & Creative Works
Formal expressions for the lowest order inelastic contribution to the degeneracy averaged total cross section for both distinguishable and indistinguishable rigid diatomic molecules are obtained for molecules interacting through a multiple potential. Explicit expressions for the inleastic cross section are obtained for molecules interacting through permanent dipole-dipole, dipole-quadrupole, or quadrupole-quadrupole potentials. These results require the summation over only a single quantum number; the relative angular momentum quantum number. Thus, they are useful for analytic or numerical calculations.
Excitation Of The N=2 State Of Atomic Hydrogen By Electron Impact In The Distorted-Wave Approximation, Ralph V. Calhoun, Don H. Madison, W. Neil Shelton
Excitation Of The N=2 State Of Atomic Hydrogen By Electron Impact In The Distorted-Wave Approximation, Ralph V. Calhoun, Don H. Madison, W. Neil Shelton
Physics Faculty Research & Creative Works
The differential cross sections for excitation of the n=2 state of atomic hydrogen by the impact of electrons with energies of 54, 100, 136, and 200 eV are calculated in the distorted-wave approximation with exchange included. Cross sections for excitation of the 2s1/2, 2p1/2, and 2p3/2 states are calculated and summed to give the n=2 differential cross sections. The results of this calculation are compared with previous theoretical calculations and with recent absolute experimental data.
The Missouri Miner, September 30, 1976
The Missouri Miner, September 30, 1976
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, September 23, 1976
The Missouri Miner, September 23, 1976
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, September 16, 1976
The Missouri Miner, September 16, 1976
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, September 09, 1976
The Missouri Miner, September 09, 1976
The Missouri Miner Newspaper
No abstract provided.
The Missouri Miner, September 02, 1976
The Missouri Miner, September 02, 1976
The Missouri Miner Newspaper
No abstract provided.
Non-Linear Finite Element Analysis Of Light Gage Steel Shear Diaphragms, Erdal Atrek, Arthur H. Nilson
Non-Linear Finite Element Analysis Of Light Gage Steel Shear Diaphragms, Erdal Atrek, Arthur H. Nilson
CCFSS Library (1939 - present)
SUMMARY Shear diaphragm action of properly designed light gage steel panels used for floors, roofs, and walls in steel buildings increase the stiffness and strength of such buildings. Considerable savings in weight and cost can be realized if full account of this action is taken in design. To make good use of the diaphragm action, detailed knowledge on diaphragm response to loading is essential. An efficient computer program has been prepared to analyze light gage steel shear diaphragm behavior in the linear and nonlinear ranges of response, up to collapse. The program uses figinite element concepts for analysis, and has …
The Missouri Miner, August 26, 1976
The Missouri Miner, August 26, 1976
The Missouri Miner Newspaper
No abstract provided.
Missouri S&T Magazine, August 1976, Miner Alumni Association
Missouri S&T Magazine, August 1976, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
Cross Sections For Excitation Of Atomic Hydrogen To The N=2, 3, And 4 States By 15-200-Kev Protons, John T. Park, John E. Aldag, Jacob M. George, Jerry Peacher
Cross Sections For Excitation Of Atomic Hydrogen To The N=2, 3, And 4 States By 15-200-Kev Protons, John T. Park, John E. Aldag, Jacob M. George, Jerry Peacher
Physics Faculty Research & Creative Works
Cross sections for the processes H++H(1 s)H++H*(n = 2, 3, 4) have been extracted from the energy-loss spectra of 15- to 200-keV protons by using a spectrum-fitting technique. Absolute cross sections have been obtained by normalization of the spectra to the theoretical cross section through the use of the Born approximation at 200 keV. The cross-section curves are very similar in shape with maxima at 60 keV. The results have been compared with available theoretical calculations. The n = 2 and n = 3 cross-section measurements are in very good agreement in curve shape with Glauber-approximation …
Comparison Of Experimental And Theoretical Electron Ejection Cross Sections In Helium By Proton Impact From 5 To 100 Kev, M. Eugene Rudd, Don H. Madison
Comparison Of Experimental And Theoretical Electron Ejection Cross Sections In Helium By Proton Impact From 5 To 100 Kev, M. Eugene Rudd, Don H. Madison
Physics Faculty Research & Creative Works
Absolute values of doubly differential cross sections are obtained for electron production in helium by 5- to 100-keV proton impact. The measured values along with earlier data at higher energies are compared with theoretical plane-wave Born-approximation functions obtained from a Hartree-Fock potential. Not only is good agreement obtained at high impact energies (above 300 keV), but fairly good agreement is found at low energies (below about 20 keV). For electrons ejected in the backward hemisphere, unexpectedly poor agreement is noted at intermediate energies where the measured cross sections dip to 50% of the calculated values in some cases. Singly differential …
Interpretation Of Tests On Welded Light Gage Steel Connections, Mark Shephard, George Winter, Teoman Peköz
Interpretation Of Tests On Welded Light Gage Steel Connections, Mark Shephard, George Winter, Teoman Peköz
CCFSS Library (1939 - present)
INTRODUCTION This report interprets the results of three sets of test data (Ref. 1 through 3) on welded light-gage cold-formed steel specimens. The tests were conducted at Cornell for the American Iron and Steel Institute on 252 symmetric puddle and fillet welded connections tested under monotonically increasing static load. The tested connections consisted of 130 shop welded specimens and 122 field welded specimens. All test connections had the same basic configuration being made up of center plates, referred to as parent plates or connected plates in the references, butted together with one or, in the case of the double sheet …
Bolted Connections In Cold-Formed Steel Structures, Randall L. Mosby, Wei-Wen Yu
Bolted Connections In Cold-Formed Steel Structures, Randall L. Mosby, Wei-Wen Yu
CCFSS Library (1939 - present)
INTRODUCTION A. Purpose of Investigation. The design of bolted connections in cold-formed steel structures is based on the present AISI Specification for the Design of Cold-Formed Steel Structural Members. 1 Prior to the development of the design criteria, bolted connections were tested at University of Michigan 2 in the 1940's and then at Cornell University 3,4 in the 1950's. The present design provisions were developed primarily on the basis of the tests conducted by George Winter and his associates at Cornell University. Additional tests were recently made by Popowich 5 on multi-bolt connections and by Dhalla 6 on connections with …
Missouri S&T Magazine, June 1976, Miner Alumni Association
Missouri S&T Magazine, June 1976, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
Effect Of Angular Momentum On The Relaxation Time In A Multicomponent Gas Mixture, Louis Biolsi Jr.
Effect Of Angular Momentum On The Relaxation Time In A Multicomponent Gas Mixture, Louis Biolsi Jr.
Chemistry Faculty Research & Creative Works
The effects of molecular angular momentum (spin polarization) on the bulk viscosity and relaxation time in a multicomponent gas mixture are considered. Formal theoretical results are obtained, using the Wang Chang-Uhlenbeck approach to the kinetic theory of gases with internal states. The results are given in terms of integrals over the weighted quantum mechanical degeneracy averaged cross section.
Mechanical Connections In Cold-Formed Steel: Comprehensive Test Procedures And Evaluation Methods, John Fraczek, George Winter, Teoman Peköz
Mechanical Connections In Cold-Formed Steel: Comprehensive Test Procedures And Evaluation Methods, John Fraczek, George Winter, Teoman Peköz
CCFSS Library (1939 - present)
Design equations do not exist for connections in cold-formed steel formed with most types of mechanical fasteners, and such designs are presently based on test results. A lack of standard test procedures and corresponding evaluation methods impedes the acceptance of connection designs and the exchange of information vital to understanding the connection performance of a large number of mechanical fasteners with diverse properties. Initial steps toward standardization are taken with the development of fixtures and procedures for single shear, pullout and pull-over tests. The proposed single shear tests employ both a simple specimen formed with two overlapping straps and a …
Performance Of Unstiffened Compression Elements, Venkatakrishnan Kalyanaraman
Performance Of Unstiffened Compression Elements, Venkatakrishnan Kalyanaraman
CCFSS Library (1939 - present)
The elastic and inelastic local buckling and elastic postbuckling behavior of unstiffened elements in cold-formed steel members and their effects on bending of beams and overall flexural buckling of columns have been investigated. An analytical investigation of the elastic and inelastic local buckling and the elastic postbuckling behavior of unstiffened elements with an elastic rotational edge restraint has been carried out. Results of experiments on short columns, long columns and beams are presented and compared with the analytical solution. An effective width equation for the elastic postbuckling range of the unstiffened element behavior has been derived by modifying the analytical …
Proposed Criteria For Load And Resistance Factor Design Of Steel Building Structures, Theodore V. Galambos
Proposed Criteria For Load And Resistance Factor Design Of Steel Building Structures, Theodore V. Galambos
CCFSS Library (1939 - present)
No abstract provided.
The Missouri Miner, April 29, 1976
The Missouri Miner, April 22, 1976
The Missouri Miner, April 08, 1976
Tentative Load And Resistance Factor Design Criteria For Connections, M. K. Ravindra, Theodore V. Galambos
Tentative Load And Resistance Factor Design Criteria For Connections, M. K. Ravindra, Theodore V. Galambos
CCFSS Library (1939 - present)
No abstract provided.
Missouri S&T Magazine, April 1976, Miner Alumni Association
Missouri S&T Magazine, April 1976, Miner Alumni Association
Missouri S&T Magazine
No abstract provided.
Intermetallic Reactions In Vacuum-Deposited Nickel And Gold Films On (111) Silicon Single Crystals, K. H. Yoon, Gordon Lewis, L. L. Levenson
Intermetallic Reactions In Vacuum-Deposited Nickel And Gold Films On (111) Silicon Single Crystals, K. H. Yoon, Gordon Lewis, L. L. Levenson
Materials Science and Engineering Faculty Research & Creative Works
Pure nickel and gold thin films were vacuum-deposited on (111) silicon single crystals. When Ni/Au/Si or Au/Ni/Si samples were heated to about 550° in situ, hexagonal or deformed hexagonal shaped crystallites were formed on the silicon substrates. The composition of these crystallites was determined by using x-ray diffraction, scanning electron microscopy and scanning Auger microprobe methods. The crystallites were identified as NiSi2. The crystal-lites on the (111) silicon plane parallel to the surface appeared as regular hexagons while the inclined crystal-lites resembled trapezia. The results of Auger spectra and in-depth composition profiles for Ni, Au, and Si showed that the …